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Twelve green DDR5 RDIMM sticks in anti-static tray

NEMIX RAM

NEMIX RAM 768GB (12×64GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-ZY9G-NRQN5

A 768 GB DDR5 registered ECC server memory kit with twelve 64 GB modules running at 4800 MT/s and CL40 latency for Cisco UCS C220 M7 rack servers

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 768 GB total capacity from twelve 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 for high throughput
  • ECC registered design detects and corrects data errors
  • 2Rx4 dual-rank organisation maximises density per slot
  • 1 V operation reduces power draw in server environments

768GB DDR5 4800 server kit

This 768GB kit contains twelve 64GB DDR5 4800 ECC registered DIMMs built for the Cisco UCS C220 M7 rack server. Each module runs at 1.1V with a CAS latency of CL40 and a 2Rx4 organisation. The registered design adds a buffer that stabilises the memory bus in high-density configurations.

Sustained load stability

All modules are stress tested under load before shipping to verify reliability during continuous operation. Error-correcting code detects and corrects single-bit errors on the fly, preventing data corruption in long-running workloads. Registered buffering reduces electrical load on the memory controller when every slot is populated.

Twelve-slot registered layout

The 288-pin DDR5 RDIMM form factor fits the server's twelve DIMM slots without a heat spreader, allowing tight spacing in the chassis. Major OEM chips from Samsung, Micron or Hynix are used depending on supply. No desktop or consumer board can accept this registered ECC configuration.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $21,441.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $27.92 per GB
Pricier than about 78% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineCisco Server Compatible Series Memory
Model nameCisco DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K12
Total capacity768 GB (12 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsCisco
In the box
Included items768 GB (12 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How much power do the 1.1 V DDR5 4800 modules draw when the Cisco UCS C220 M7 runs continuously?

Each module operates at 1.1 V DDR5 standard voltage; total system draw depends on the server workload and the 12 x 64 GB population.

What must the Cisco UCS C220 M7 already have to accept this 12 x 64 GB registered ECC kit?

The server needs 12 free 288-pin DDR5 RDIMM slots and a BIOS that supports 2Rx4 registered ECC modules at 4800 MT/s.

Will these CL40 2Rx4 modules run alongside any older DDR5 DIMMs I might keep in the same chassis?

Mixing ranks or speeds is not recommended; the kit is validated as a matched 12 x 64 GB set for the Cisco UCS C220 M7.

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